#include <bits/stdc++.h>

#define ll long long
#define ull unsigned long long
#define uint unsigned int

#define YES cout << "YES" << '\n'
#define NO cout << "NO" << '\n'
#define endl '\n'
const int INF = 1e9;
const int MOD = 998244353;
using namespace std;

/*思考

*/
int b[200005]={0};
void solve() {
    int n=0;
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>b[i];
    }
    int min=b[1];
    for(int i=2;i<=n;i++){
        if(b[i]/2>=min){
            NO;
            return;
        }
        if(min>b[i]){
            min=b[i];
        }
    }
    YES;
}

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);
    int t = 0;
    cin >> t;
    while (t--) solve();
    return 0;
}